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http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/1299| Title: | Spatial distribution of neutron flux in geological larger sample analysis at CDTN/CNEN, Brazil |
| Title of periodic: | Journal of Radioanalytical and Nuclear Chemistry |
| Authors: | Menezes, Maria Ângela de Barros Correia Jaćimović, Radojko Pereira, Claubia |
| Affiliation: | Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte, MG, Brazil Jožef Stefan Institute Ljubljana, Slovenia Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, MG, Brasil |
| Issue Date: | 2015 |
| Keywords: | Neutron activation analysis |
| Abstract: | Iron monitor wire was used to evaluate the neutron flux gradients inside 5 g-geological sample during irradiation. The spatial distribution for thermal flux was about 2 %/cm for radial and axial gradients and about 5 %/cm for radial and 2.5 %/cm for axial gradients for fast neutrons. The results were evaluated using reference material IAEA-SOIL-7 analysed as small and larger samples and tested with calculating En numbers. This test pointed out that all results were consistent within a 95 % confidence interval. The contribution of the neutron flux gradients may be reduced for larger sample using the standard procedure of the k0-instrumental neutron activation analysis |
| Access: | R |
| Appears in Collections: | Artigo de periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Spatial distribution of neutron flux in geological larger sample.pdf | 353.88 kB | Adobe PDF | View/Open Request a copy |
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